A number of the hopefuls for next year’s Republican presidential nomination made news in the last few days at the annual Conservative Political Action Conference (CPAC). Find out how some of the top GOP contenders stack up against putative Democratic nominee Hillary Clinton at 10:30 a.m. Eastern today.

To get a sense of longer-term job approval trends for the president, Rasmussen Reports compiles our tracking data on a full month-by-month basis.

Rasmussen Reports has been a pioneer in the use of automated telephone polling techniques, but many other firms still utilize their own operator-assisted technology (see methodology).

Daily tracking results are collected via telephone surveys of 400 likely voters per night and reported on a three-day rolling average basis. To reach those who have abandoned traditional landline telephones, Rasmussen Reports uses an online survey tool to interview randomly selected participants from a demographically diverse panel. The margin of sampling error for the full sample of 1,200 Likely Voters is +/- 3 percentage points with a 95% level of confidence. Results are also compiled on a full-week basis and crosstabs for full-week results are available for Platinum Members.